Nanometer flaky 1,1-diamido-2,2-binitro ethylene explosive and preparation method thereof

A technology of dinitroethylene explosive and dinitroethylene, which is applied in explosives processing equipment, explosives, nanotechnology and other directions, can solve the problems of high cost, difficult methods, complicated technological process, etc., and achieves short preparation period and solvent recycling. , the effect of simple process

Active Publication Date: 2016-04-20
INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although there are currently some methods to prepare ordered nanostructure FOX-7, these methods still have problems such as complicated process flow, high cost, and difficult methods.

Method used

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  • Nanometer flaky 1,1-diamido-2,2-binitro ethylene explosive and preparation method thereof
  • Nanometer flaky 1,1-diamido-2,2-binitro ethylene explosive and preparation method thereof
  • Nanometer flaky 1,1-diamido-2,2-binitro ethylene explosive and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0031] First, at room temperature, weigh 0.1 g of 1,1-diamino-2,2-dinitroethylene and 0.1 g of polyvinylpyrrolidone, add 80 g of ethanol, heat to 65°C, and stir at 450 rpm to completely dissolve them into clear solution;

[0032] Then, the obtained solution was continuously stirred and refluxed at 65°C for 60min;

[0033] Finally, the solution was cooled to 0°C according to the cooling rate of 2°C / min until the crystals of the explosives were completely precipitated; filtered, washed with deionized water to remove the surfactant, and dried to obtain the following figure 1 and figure 2 The nanoplatelet 1,1-diamino-2,2-dinitroethylene explosive shown.

[0034] The nanosheet 1,1-diamino-2,2-dinitroethylene explosive has a sheet diameter of about 1 μm, a thickness of about 100 nm, and a product purity of 99.2 percent.

Embodiment 2

[0036] First, 1.0 g of 1,1-diamino-2,2-dinitroethylene and 0.5 g of polyethylene glycol cetyl ether were weighed at room temperature, 100 g of N-methylpyrrolidone was added, heated to 60°C, and stirred. The speed is 800rpm, so that it completely dissolves into a clear solution;

[0037] Then, the obtained solution was continuously stirred and refluxed at 60°C for 120min;

[0038] Finally, the solution was cooled to 0°C according to the cooling rate of 10°C / min until the crystals of the explosive were completely precipitated; filtered, washed with deionized water to remove the surfactant, and dried to obtain the following image 3 The nanoplatelet 1,1-diamino-2,2-dinitroethylene explosive shown.

[0039] The nanosheet 1,1-diamino-2,2-dinitroethylene explosive obtained in this example has a sheet diameter of about 2 μm, a thickness of about 100 nm, and a product purity of 99.4%.

Embodiment 3

[0041] First, weigh 0.05 g of 1,1-diamino-2,2-dinitroethylene and 0.1 g of polyethylene glycol cetyl ether at room temperature, add 100 g of acetone, heat to 50°C, and stir at 300 rpm , so that it completely dissolves into a clear solution;

[0042] Then, the obtained solution was continuously stirred and refluxed at 50°C for 30min;

[0043] Finally, the solution is cooled down to 0°C according to the cooling rate of 0.5°C / min until the crystals of the explosive are completely precipitated, filtered, washed with deionized water to remove the surfactant, and dried to obtain the following: Figure 4 The nanoplatelet 1,1-diamino-2,2-dinitroethylene explosive shown.

[0044] The nano-flaky 1,1-diamino-2,2-dinitroethylene explosive sheet layer obtained in this example has a diameter of about 1.5 μm, a thickness of about 100 nm, and a product purity of 99.1%.

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Abstract

The invention discloses a nanometer flaky 1,1-diamido-2,2-binitro ethylene explosive and a preparation method thereof. The preparation method includes the following steps that a 1,1-diamido-2,2-binitro ethylene explosive and surfactant are dissolved in an organic solvent, heated and stirred to be completely dissolved, then cooling is conducted at the speed of 0.5-10 DEG C / min under stirring for crystallization, and through filtering, washing and drying, the nanometer flaky 1,1-diamido-2,2-binitro ethylene explosive can be obtained. The nanometer flaky 1,1-diamido-2,2-binitro ethylene explosive prepared through the method is of an orderly nanometer flaky structure and is uniform in particle morphology, the sheet layer diameter is 1-2 micrometers, the sheet layer thickness is 80-120 nm, the crystal purity of the explosive is larger than 99%, and important application prospects are achieved in the field of booster explosives and the like. The preparation technological process is simple, the preparation period is short, the solvent can be recycled, reaction conditions are moderate, and good safety is achieved.

Description

technical field [0001] The invention relates to the field of energetic materials, in particular to a nano-flaky 1,1-diamino-2,2-dinitroethylene explosive and a preparation method thereof. Background technique [0002] 1,1-Diamino-2,2-dinitroethylene (FOX-7) is an insensitive high-energy explosive with excellent comprehensive properties. It is insensitive to impact, friction and electrostatic sparks, and is a recognized insensitive and important energetic compounds with higher energy levels. Its energy level is comparable to that of cyclotrimethylenetrinitroamine (RDX), and its sensitivity is close to that of 1,3,5-trinitrotoluene (TNT). Due to its superior explosive performance, FOX-7 is considered to be a promising alternative to RDX explosives, which are widely used in current weapon systems, and has been paid more and more attention by researchers of energetic materials. [0003] After the energetic material is nanosized, it can effectively improve the energy release ra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B49/00C06B21/00B82Y40/00
CPCB82Y40/00C06B21/00C06B49/00
Inventor 杨志剑李玉斌巩飞艳张建虎丁玲聂福德
Owner INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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